Wolf CSO Steam Oven Code E41 / F2: water sensor short or leaking boiler

What E41 / F2 means

On Wolf CSO convection steam ovens such as the CSO24 and CSO30 series, E41 with F2 means a short circuit in the water temperature sensor or its wiring, or that the boiler is leaking water. You see the pair when the oven cannot read water temperature, and steam cooking stops. Any dripping under the oven makes it more urgent.

Common causes of E41 / F2

Short circuit in the water temperature sensor or its wiring
Boiler leaking water

✓ One safe check you can try

1. Flip the oven's breaker off. 2. Look for water on the floor or cabinet under the oven and wipe it up. 3. Check that the tank is seated and not overfilled. 4. Do not run steam again. 5. Call us if E41 / F2 returns or you see leaks.

! Why to stop there

Water and electricity together are a safety risk.
A leaking boiler needs inspection before power is restored.
We give a written price first and stand behind the work for 30 days.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Steam Oven codes

E26Wolf 24-inch E Series Code E26: Break or loose contact in climate sensor, or blocked duct E87Wolf Convection Steam Oven Code E87: Exhaust slide valve stuck F6Wolf Convection Steam Oven Code F6: Processor and Main Relay Error E51 F0Wolf Convection Steam Oven Code F0: Core temperature probe sensor problem F15Wolf CSO Steam Oven Code F15: niche running too hot F1Wolf Convection Steam Oven Code F1: Food probe error F17Wolf CSO Steam Oven Code F17: climate sensor overtemperature F10Wolf Convection Steam Oven Code F10: Control moisture or water tank valve

E41 / F2E41 / F2 questions

Is a leak always present with E41?

Not always. The code can also come from a sensor short. We look for leaks first because water near electrics matters.

Can I wipe up and try again?

Dry any water, then you may try once. If E41 / F2 returns, do not keep running steam.

What does F2 mean here?

F2 is the companion number. The listing treats E41 and F2 as one water temperature or boiler leak condition.